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MSL1064 Dataheets PDF



Part Number MSL1064
Manufacturers ATMEL Corporation
Logo ATMEL Corporation
Description 6-string PWM LED Driver
Datasheet MSL1064 DatasheetMSL1064 Datasheet (PDF)

www.DataSheet.co.kr Atmel LED Drivers MSL1061/MSL1064 6-string PWM LED Driver with Digitally Compensated, 1.1MHz, 48V Boost Regulator, ±1.5% Current Balance, I2C Interface Datasheet Brief Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr Atmel LED Drivers-MSL1061/MSL1064 6-string PWM LED Driver with Digitally Compensated, 1.1MHz, 48V Boost Regulator, ±1.5% Current Balance, I2C Interface General Description The Atmel® LED DriversMSL1061 and MSL1064 are LED drivers with integrat.

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www.DataSheet.co.kr Atmel LED Drivers MSL1061/MSL1064 6-string PWM LED Driver with Digitally Compensated, 1.1MHz, 48V Boost Regulator, ±1.5% Current Balance, I2C Interface Datasheet Brief Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr Atmel LED Drivers-MSL1061/MSL1064 6-string PWM LED Driver with Digitally Compensated, 1.1MHz, 48V Boost Regulator, ±1.5% Current Balance, I2C Interface General Description The Atmel® LED DriversMSL1061 and MSL1064 are LED drivers with integrated boost regulators capable of driving six LED strings at 30mA up to 48V for lighting applications to 8W, allowing up to 72 LEDs per driver backlighting applications. The MSL1061/64 incorporates a current mode PWM boost regulator with 50V internal switch and a wide, 4.75V to 36V input voltage range. The 1.1MHz switching frequency uses a small-sized inductor and output capacitors while maintaining high efficiency and low ripple voltage and noise. The boost regulator uses digital control and requires no external compensation. An I2C/SMB compatible serial interface operates up to 1MHz, giving access to internal 8-bit PWM dimming and 4-bit analog current adjustment for 12bit current control. Individual string enable and fault reporting are available. The MSL1061 operates with one of four I2C slave addresses selected from a single input pin (AD0), whereas the lower cost MSL1064 has one fixed I2C slave address. The MSL1061/64 is also easy to employ without using an I2C interface, dimming with an external PWM signal. Analog dimming of LED string current is available for use with an ambient light sensor (ALS) and/or temperature management with a thermistor or IC temperature sensor. The MSL1064 comes in a 5 x 5mm, 24-pin TQFN package, and the MSL1061 in a 5 x5mm, 28-pin TQFN. Both packages are lead-free, halogen-free and RoHS-compliant, and operate over a -40°C to 85°C temperature range. Applications Long Life, Efficient LED Backlighting for: • Notebook PCs and Desktop PC Monitors • Medical and Industrial Instrumentation • Portable Media Players (PMPs) • Automotive Audio-visual Displays Traffic Lights Signage Ordering Information PART MSL1061AV MSL1064AW DESCRIPTION 6-ch LED driver 6-ch LED driver PACKAGE 28-pin, 5x5x0.75mm TQFN 24-pin, 5x5x0.75mm TQFN 2 Atmel LED Drivers-MSL1061/MSL1064 Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr Atmel LED Drivers-MSL1061/MSL1064 6-string PWM LED Driver with Digitally Compensated, 1.1MHz, 48V Boost Regulator, ±1.5% Current Balance, I2C Interface Key Features • Drives 6 Strings of up to 12 LEDs per String • Drives 72 White LEDs at 30mA for 8W Backlight • Better than ±1.5% String-to-string Current Accuracy • 4.75V to 36V Wide Input Supply Range • Integrated Boost Regulator with 50V Internal Switch • 1.1MHz Current Mode PWM Boost for Low Noise • Up to 92% Boost Converter Efficiency • Internal, Automatic Power Supply Management • Adjustable LED Current up to 30mA per String • String Outputs can be Paralleled for >30mA LEDs • 256:1 Internal PWM Dimming Range Through I2C • 16:1 Internal Analog Dimming Range Through I2C • 12-Bit Total Internal PWM + Analog Dimming Range • ALS Interface for Automatic Brightness Setting • NTC Interface for Temperature Derating • Individual Open-circuit and Short-circuit Fault Detection • Faults Automatically Disable the Faulty String • Fault Reporting and Fault Reset Through I2C/SMB • FLTB Logic Output Indicates Faults • Enable Input Simplifies Operation Without I2C/SMB • PWM Input Synchronizes PWM to System Clock and Allows Logic PWM Control Without I2C • Adjustable Over-voltage Protection • Serial I2C/SMB Compatible Interface to 1MHz • Four selectable I2C Slave Addresses (MSL1061) • GUI Software for Ease of Evaluation • -40°C - +85°C Operating Temperature Range • Lead-free, Halogen-free, RoHS-compliant Package Application Circuit VIN = 4.75V to 36V VOUT = 48V max VIN EN SW OVP Fault Alert FLTB OSC ILED Set String current Up to 12 White LEDs per String …. ALS or NTC IADJ MSL1061 MSL1064 STR0 . STR5 SDA . . . 1.5% maximum current mismatch between Strings PWM GND SCL AD0 I C or SMBus I C address selection (MSL1061 only) Atmel LED Drivers-MSL1061/MSL1064 3 Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr Quick Start Guide This section summarizes for quick evaluation the capabilities of, and differences between, the MSL1061 and MSL1064. The MSL1061 and MSL1064 are LED string drivers with integrated boost regulators, which power, monitor, and dim multiple LEDs at high efficiency for backlighting and signage applications. Each MSL1061/64 contains six outputs, each capable of sinking up to 30mA through a string of series-connected LEDs. How Many LEDs Can the Atmel LED Drivers-MSL1061/64 Drive? The MSL1061/64 includes 6 current sinks (STR0 through STR5) that each control the LED current of multiple series-connected white LEDs. Any combination of the 6-strings may be enabled, a.


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